Edward t



(No Model.)

E. T. LADD.

BUGKSAW FRAME.

No. 595,315. Patented Deo. 14,1897.

IOIZDQN- E ward T. Ladd/J UNTTED STATES PATENT OEEIcE.

EDVARD T. LADD, OF MARIONVILLE, MISSOURI.

BUCKSAW-FRANIE.

SPECIFICATION forming part of Letters Patent No. 595,315, dated December 14, 1897. Application filed September 29, 1897. Serial No. 653,509. (No model.)

T0 LIZ whom, it 'nm/y (formera:

Be it known that I, EDWARD T. LADD, a citizen of the United States, residing at Marionville, in the county of Lawrence and State of Missouri, have invented a new and useful Bucksaw-Franie, of which the following is a specification.

This invention relates to bucksaw-frames, its object being to provide a frame of this character of improved and simplified construction to which the saw-blade can be easily and quickly attached and as readily detached therefrom, and which frame will normally maintain the requisite tension on the sawblade without the air of special straining or adjusting devices.

Vith this object in view the invention consists of a buclsaw-frame formed from a single fiat bar of springsteel, bent to the desired form and provided with slots in the handle and end bars thereof, through which the respective ends of the saw-blade will loosely pass to receive retaining-pins outside the said bars, and the spring action of the frame will normally cause sufficient pressure on the retaining-pins to prevent their accidental displacement and also maintain the requisite tension on the saw-blade.

The invention will be fully described in the following specification, and its novel features particularly defined in the subjoined claims.

In the drawings, Figure'l is a perspective view of a bucksaw-frame made in accordance with my invention. Figs. 2 and 3 are views of the respective ends thereof.

Similar reference-numerals indicate similar parts in the several figures.

The frame is formed of a single fiat bar of spring-steel, bent to form a handle-bar 1, an end bar 2, and the crown or connecting-bar 3, which joins the upper ends of the handle and end bars. Near its lower end the handle-bar 1 is given a half-twist, as indicated at 4, to bring the wide faces of the bar below the twist at a right angle to said faces above the twist, and the part of the handle-bar below the twist is provided with a verticallydisposed slot 5 of sufficient dimensions to permit one end of the saw-blade 6 to pass loosely through it. Below the slot the handle-bar is reduced to form a shank 7, to which a handle S is secured in any suitable manner, and the handle will preferably be of wood. Another shank 9 is welded or otherwise firmly secured to the upper end of the handle-bar, to which is secured the handle 10, also preferably of wood.`

Near its upper end the end bar 2 is given a half-twist, as indicated at l1, to bring the wide faces of said bar at a right angle to the wide faces of the connecting-bar, and thereby form a spring which will yield sufficiently under pressure to permit the saw-blade to be secured in position. The lower end of the end bar is provided with a verticallydisposed slot 12 for the reception of the other end of the saw-blade. The saw-hlade o' is provided at each end with a transverse hole 18 to rcceive the pins 14, which extend transversely across the slots 5 and 12, respectively, and engage the outer faces of the handle and end bars.

In order to secure the saw-blade in the frame, pressure will be applied sufficient to spring the end bar 2 toward the handle-bar, and the respective ends of the saw-blade will then he passed through the slots 5 and 12, and the pins 14 be fitted in the holes 13. Then the pressure is removed, the end bar 2 will spring outwardly and thereby put a tension on the saw-blade and.. also cause sufficient friction between the handle and end bars and the pins 14 to prevent the accidental displacement of the latter. In order to remove the blade, it is only necessary to apply sufficient pressure to the handle and end bars to force them toward each other and take the strain off the pins 14, when the latter can be easily removed and the blade taken out of the frame.

From the foregoing description it will be seen that I have produced an exceedingly simple and efficient bucksaw-frame requiring only a couple of pins to secure the saw-blade in position and that the normal spring action of the frame will maintain the desired tension on the blade and also lock the pins against accidental displacement. In my improved frame there are no threaded parts to become worn out, and no special devices are required to put the necessary tension on the blade. By having the bar of which the frame is made arranged edgewise in the direction in which it is subjected to the greatest strain a very strong frame can be made from a compara- IOO tively light steel bar, and by giving the end bar a half-twist a very strong spring action is secured which is not liable to lose its force, and a saw-frame made in accordance with my invention is practically indestructible.

Having thus described the invention, what I claim isl. A bucksaW-fraine, made of a single Hat bar of spring-steel arranged edgewise and bent to form a handle-bar, an end bar, and a connecting-bar, the handle-bar being given a half-twist nearits lower end and provided with a verticallydisposed slot to receive one end of the saw-blade, and the end bar being given a half-twist near its upper end to form a spring and provided with a vertically-disposed slot near its lower end, to receive the other end of the saw-blade, substantially as described.

2. A bucksaw-fralne made of a single flat bar of spring-steel arranged edgewise and bent toforin a handle-bar, an end bar, and a connecting-bar, the handle-bar being given a half-twist near its lower end and provided with a vertically-disposed slot to receive one end ofa saw-blade, and being reduced below the slot to form a handle-shank, and the end bar being given, a half-turn near its upper end to form a sprin g and provided with a vertically-disposed slot near its lower end to receive the other end of the saw-blade, com* bined with a saw-blade having a transverse hole at each end, pins to it in said holes and engage the outer faces of the handle and end bars, a handle secured to the shank of the lower end of the handle-bar, and a handle secured to the handle-barnear its upper end, substantially as described.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two Witnesses.

EDVARD T. LADD.

Witnesses:

F. P. CARNEY, E. J. MILTON. 

